Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 82, Subpt. G, App. M Appendix M to Subpart G—Unacceptable Substitutes Listed in the September 30, 2004 Final Rule, Effective November 29, 2004

End-use

Substitute

Decision

Comments

All foam end-uses:

HCFC-141b

Unacceptable Closed cell foam products and products containing closed cell foams manufactured with this substitute on or before December 1, 2017 may be used after that date

Alternatives exist with lower or zero-ODP.

—rigid polyurethane and polyisocyanurate laminated boardstock

—rigid polyurethane appliance

—rigid polyurethane spray and commercial refrigeration, and sandwich panels

—rigid polyurethane slabstock and other foams

—polystyrene extruded insulation boardstock and billet

—phenolic insulation board and bunstock

—flexible polyurethane

—polystyrene extruded sheet

—Except for: ¹

—space vehicle

—nuclear

—defense

—research and development for foreign customers